Explanations of Natural Phenomena

Testing of Proposed Explanations

Analysis of Testing Results

Laboratory Requirements for Part D

Laboratory Skills and Current Events in Biology

Similarity and Diversity Among Living Things—Life Processes

Homeostasis

Cell Function and Structure

Chemistry of Living Organisms

Genetic Continuity

Organic Evolution

Continuity of Life by Means of Reproduction

Dynamic Equilibrium in Living Things

Interdependence of Living Things

Human Impact on Ecosystems